The 1590ZGRP163PL is the long steel inner panel for the 1590ZGRP163 enclosure (360 x 160 x 90 mm). It provides a full-length metal mounting surface for boards and components inside the narrow glass reinforced polyester box.

Size is 13.54 x 5.7 x 0.06 in (344 x 145 mm). The drawing specifies 16 gauge galvanized steel with 3.18 x 45.0° chamfered corners. The panel mounts to the molded-in bonding/mounting nuts on the enclosure's internal shelf; the host enclosure has a 71 mm deep base and 20 mm deep lid.

The purchased assembly includes panel mounting screws and washers. Extra screws are available as SCGM6GRP-20 copper ground hardware (M6 - 1.0 x 6mm with M6 washers, 20 pack), and the drawing lists the SCGM6GRP copper plated M6-1.0 x 6mm mounting screw as the accessory.

Hammond specifies a recommended panel screw torque of 45-50 cN-m [65-70 ozf-in]. The 1590ZGRP163PL is RoHS and REACH compliant, ships shrink wrapped at 0.88 lbs (0.40 kg). The drawing notes that factory modification (milling, drilling, printing etc.) is available and that solid models can be had in .stp or .x_t format. UL file E65324 is listed for the part.